Hi Chris,
I'm curious. Are you planning to animate a tide level plane over a
DEM model? Awhile back I tried a tidal surface plane connected to live
tidal WSDL source, over a WPF/XBAP DEM surface but I only had access to 10m
DEM (Estuarine Bathymetry Data merged to USGS 10mDEM) which just wasn't
accurate enough. I don't know what Google uses in that area but don't think
it's any more accurate, at least not yet. There are some noises about a
submeter upgrade at some point.
However, 6" Lidar DEM would work pretty well. There must be
something of that nature for Manhattan. PA is flying 8" Lidar for their
whole state http://www.dcnr.state.pa.us/topogeo/pamap/elevation.aspx Some
cities are flying 3" Lidar.
It would be interesting to make live web models of a tidal station
showing predicted levels at any given dateTime as well as actual levels.
Until Google updates their DEM data with more accurate resolution Lidar you
could probably use WPF to show a 3D visual rendering and animate against a
real time tide level and/or compressed time like kml timespan. The same
could be done with USGS flood gauges
http://waterdata.usgs.gov/usa/nwis/uv?site_no=01390500 It would also be
interesting, maybe even useful, to see online models of predicted storm
surges, but it all demands more accurate terrain models.
Randy
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Chris Spurgeon
Sent: Thursday, July 24, 2008 8:40 AM
To: [email protected]
Subject: Re: [Geowanking] Source for hour-by-hour tide level information
Hey Jesse and Randy!!
Thanks so much! Got exactly the data I needed (I'm doing some programming
work for an artist friend who's building a tide display in Manhattan).
Chris Spurgeon
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